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参数资料
| 型号： | ISL8023IRTAJZ-T |
| 厂商： | Intersil |
| 文件页数： | 3/20页 |
| 文件大小： | 0K |
| 描述： | IC VOLTAGE REGULATOR |
| 标准包装： | 6,000 |
| 系列： | * |
ISL8023, ISL8024
Pin Configuration
ISL8023, ISL8024
(16 LD TQFN)
TOP VIEW
VIN 1
VDD 2
PG 3
SYNC 4
16
5
15
6
14
7
13
8
12
1 1
10
9
PGND
PGND
SGND
FB
Pin Descriptions
PIN NUMBER
1, 16
2
3
4
5
6
7
8, 9
10
11, 12
13, 14, 15
Exposed Pad
SYMBOL
VIN
VDD
PG
SYNC
EN
FS
SS
COMP, FB
SGND
PGND
PHASE
-
3
DESCRIPTION
Input supply voltage. Connect two 22μF ceramic capacitors to power ground.
Input supply voltage for the logic. Connect VIN PIN.
Power-good is an open-drain output. Use 10k ? to 100k ? pull-up resistor connecting between VIN and
PG. At power-up or EN HI, PG rising edge is delayed by 1ms upon output reached within regulation.
Mode Selection pin. Connect to logic high or input voltage VIN for PWM mode. Connect to logic low or
ground for PFM mode. Connect to an external function generator for synchronization with the positive
edge trigger. There is an internal 1M ? pull-down resistor to prevent an undefined logic state in case
of SYNIN pin float.
Regulator enable pin. Enable the output when driven to high. Shutdown the chip and discharge output
capacitor when driven to low. There is an internal 1M ? pull-down resistor to prevent an undefined logic
state in case of EN pin float.
This pin sets the oscillator switching frequency, using a resistor, RFS, from the FS pin to GND. The
frequency of operation may be programmed between 500kHz to 4MHz. The default frequency is 1MHz
and configured for internal compensation if FS is connected to VIN.
SS is used to adjust the soft-start time. Set to SGND for internal 1ms rise time. Connect a capacitor from
SS to SGND to adjust the soft-start time. Do not use more than 33nF per IC.
The feedback network of the regulator, VFB, is the negative input to the transconductance error
amplifier. COMP is the output of the amplifier if FS resistor is used. Otherwise COMP is disconnected
thru a MOSFET for internal compensation. Recommend connecting COMP to SGND in internal
compensation mode. The output voltage is set by an external resistor divider connected to VFB. With
a properly selected divider, the output voltage can be set to any voltage between the power rail
(reduced by converter losses) and the 0.6V reference. There is an internal compensation to meet a
typical application. Additional external network across COMP and SGND might be required to improve
the loop compensation of the amplifier operation.
In addition, the regulator power-good and undervoltage protection circuitry use VFB to monitor the
regulator output voltage.
Signal ground.
Power ground.
Switching node connection. Connect to one terminal of the inductor.
The exposed pad must be connected to the SGND pin for proper electrical performance. Place as
much vias as possible under the pad connecting to SGND plane for optimal thermal performance.
FN7812.3
March 24, 2014
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL8023IRTAJZ-T7 | 功能描述:直流/直流开关转换器 3A, Adjustable Vout, Low Quiescent Current Synch. Buck Regul RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| ISL8023IRTAJZ-T7A | 功能描述:直流/直流开关转换器 3A ADJ VOUT LW QUIES CENT CUR SYNC BUCK RoHS:否 制造商:STMicroelectronics 最大输入电压:4.5 V 开关频率:1.5 MHz 输出电压:4.6 V 输出电流:250 mA 输出端数量:2 最大工作温度:+ 85 C 安装风格:SMD/SMT |
| ISL8024 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:3A/4A Low Quiescent Current High Efficiency Synchronous Buck Regulator |
| ISL8024AEVAL3Z | 制造商:Intersil Corporation 功能描述:ISL8024A EVALUATION BOARD 3 - ROHS COMPLIANT - 16 LEAD - - Bulk |
| ISL8024AIRTAJZ | 功能描述:IC VOLTAGE REGULATOR RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:* 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 类型:降压（降压） 输出类型:两者兼有 输出数:1 输出电压:5V，1 V ~ 10 V 输入电压:3.5 V ~ 28 V PWM 型:电流模式 频率 - 开关:220kHz ~ 1MHz 电流 - 输出:600mA 同步整流器:无 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:16-SSOP（0.154"，3.90mm 宽） 包装:带卷 (TR) 供应商设备封装:16-QSOP |
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